super-prototyping 1.6.4

2026-09-26. Browse and share projects in the community, and open any of them
on the web.

• A community of projects. The home page's Community tile, and a
  Community section under your projects, list the app clones people shared to
  the community repo, each with a cover drawn like a book's, and the examples.
  Ask your agent to share a project and it opens the pull request for you;
  sp pack checks one first.
• Four projects to a row on the home page, each cover at the shape of a
  link preview.
• A board can no longer reach the app. Every board runs sandboxed, and the
  websites you visit can no longer reach the app's server.
• Every project in the community opens on the web. Each has a read-only
  canvas at superproto.dev/p/<id>, the examples and projects people shared
  alike. Copy link copies that address, and Open goes there for a
  shared project; an example still opens as a tab in the app.
• sp, refkit and artgen no longer write into the app. Python's cache
  files went inside it, which broke the app's signature check.